package com.example.java_chatroom.config;

import com.example.java_chatroom.api.TestWebSocketAPI;
import com.example.java_chatroom.api.WebSocketAPI;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Configurable;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.config.annotation.EnableWebSocket;
import org.springframework.web.socket.config.annotation.WebSocketConfigurer;
import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry;
import org.springframework.web.socket.server.support.HttpSessionHandshakeInterceptor;

@Configuration
@EnableWebSocket //启动webSocket
public class WebSocketConfig implements WebSocketConfigurer {
    @Autowired
    private TestWebSocketAPI testWebSocketAPI;

    @Autowired
    private WebSocketAPI webSocketAPI;

    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        //通过这个方法, 把刚才创建好的 Handler 类注册到具体的路径上
        //此时当浏览器, webSocket 的请求的路径是'/test' 的时候, 就会调用到 TestWebSocketAPI 这个类的方法
        registry.addHandler(testWebSocketAPI,"/test")
                .addHandler(webSocketAPI,"/WebSocketMessage")
                //通过注册这个特定的 HttpSession 拦截器, 就可以把用户给 HttpSession 中添加的 Attribute 键值对
                // 往 websocket session 中添加一份
                .addInterceptors(new HttpSessionHandshakeInterceptor());
    }
}
